B4000 Regular Cab 4WD V6-4.0L OHV (1997)
Check left front motor up.
1. Depress the front of seat button to the UP position.
2. Check continuity between B/W, R/LB wires and Y/LB, B wires of seat control switch.
3. Is continuity present?
Step 3
Check left front motor down.
1. Depress the front of seat button to the DOWN position.
2. Check continuity between Y/LB, B/W wires and B, R/LB wires of seat control switch.
3. Is continuity present?